| Champions League 1955/1956 - Appearances as Referee |  |
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| 12/02/1956 | AC Milan | - | Rapid Wien | 7:2 | - | - | - |
| Champions League 1955/1956 - Appearances as Referee | |
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| 12/02/1956 | AC Milan | - | Rapid Wien | 7:2 | - | - | - |
| Complete name: | Leopold Sailvin Horn |
| Born: | 29/08/1916 † 16/09/1995 |
| Place of birth: |
Sittard, 
Netherlands |
| Nationality: |
Netherlands |